Podcast 76 SONAME=linuxcrazy.so.76

libtool
In this Podcast, I talk about the libpng upgrade. If you have any questions, you can reach me at david at linuxcrazy dot com, or on freenode irc, channel #linuxcrazy.

The Gentoo libpng 1.2.x to 1.4.x upgrade didn't go very smoothly. Reason seems to be that libpng usage is odd, it provides both libpng14.* and libpng.* files.

Some packages like to use versioned libs while some other don't and it seems to lead to giant mess in *.la files.

In the past, if a source code package developer wanted to take advantage of the power of shared libraries, he needed to write custom support code for each platform on which his package ran. He also had to design a configuration interface so that the package installer could choose what sort of libraries were built.

GNU Libtool simplifies the developer's job by encapsulating both the platform-specific dependencies, and the user interface, in a single script. gnu Libtool is designed so that the complete functionality of each host type is available via a generic interface, but nasty quirks are hidden from the programmer.

GNU Libtool's consistent interface is reassuring... users don't need to read obscure documentation in order to have their favorite source package build shared libraries. They just run your package configure script (or equivalent), and libtool does all the dirty work.

Links
Libpng Update Tips
http://gentoo-pr.org/

libtool
http://www.gnu.org/software/libtool/manual/libtool.html

SONAME + Shared Libs Explained
http://wiki.linuxquestions.org/wiki/Library-related_Commands_and_Files#O...
http://blog.flameeyes.eu/2009/10/27/a-shared-library-by-any-other-name
http://tldp.org/HOWTO/Program-Library-HOWTO/shared-libraries.html
http://blog.flameeyes.eu/2010/04/06/important-names-pointless-names
http://blog.flameeyes.eu/2010/05/12/gentoo-failed-us-again

irc network freenode channel #linuxcrazy

Download

ogg

mp3

Podcast 75 David's Biased Distro Review

My Test Box
In this Podcast, I give an overview of the Hottest Linux Distributions. If you have any questions, you can reach me at david at linuxcrazy dot com, or on freenode irc, channel #linuxcrazy.

The Picture to the right is my Test Box that I recorded this Podcast on because my main box was busy working on updating itself. You will notice some popping from the microphone I was using in the picture.

Links
Distrowatch
http://distrowatch.com/

irc network freenode channel #linuxcrazy

Download

ogg

mp3

Podcast 74 Audacity Basics (video)

audacity
In this Screencast, I give an overview of the basics of using Audacity. If you have any questions, you can reach me at david at linuxcrazy dot com, or on freenode irc, channel #linuxcrazy.

Links
Audacity
http://audacity.sourceforge.net/

recordMyDesktop
http://recordmydesktop.sourceforge.net/about.php
http://recordmydesktop.sourceforge.net/manpage.php

irc network freenode channel #linuxcrazy

Download

ogg

mp3

Podcast 73 Understanding Portage and Ebuilds

Building packages on a Gentoo System starts with package description files called ebuilds. They're basically shell scripts. Along the way, you specify from where to get the source tarball. When you build, Portage downloads the source and then proceeds to unpack and compile it. Because they're shell scripts, they can use shell variables to great effect.

LINKS:

Southeast LinuxFest
http://www.southeastlinuxfest.org/

Texas Linux Fest
http://www.texaslinuxfest.org/

TechCast.us
http://techcast.us/

PythonGroup Wiki
http://asterisklinks.com/wiki/doku.php?id=core:start

PythonGroup Forum
http://asterisklinks.com/python/index.php?board=4.0

Gentoo (dabbott)
http://dev.gentoo.org/~dabbott/

irc network freenode channel #linuxcrazy

Download

ogg

mp3

Syndicate content